Chemistry
The Structural Basis of Enzyme Inhibition by Transition State Analogues
Quick fact
Transition state analogues can bind enzymes up to 10^8 times more tightly than the substrate itself—a principle that has produced drugs like the HIV protease inhibitor saquinavir, which mimics the transition state of the viral protease and halts viral replication.
Why this is interesting
Ever wonder how a tiny change in a molecule can completely shut down a giant enzyme? The answer lies in capturing a fleeting, high-energy moment that lasts only a trillionth of a second.